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Records |
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Author |
Vanderstappen, M.G.; Van Grieken, R.E. |
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Title |
Co-crystallization with 1-(2-pyridylazo)-2-naphthol, and X-ray fluorescence, for trace metal analysis of water |
Type |
A1 Journal article |
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Year |
1978 |
Publication |
Talanta : the international journal of pure and applied analytical chemistry |
Abbreviated Journal |
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Volume |
25 |
Issue |
11/12 |
Pages |
653-658 |
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Keywords |
A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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Abstract |
Adding 20mg of 1-(2-pyridylazo)-2-naphthol (PAN) to a water sample at 70°, and filtering off the precipitate after cooling, gives efficient preconcentration prior to X-ray fluorescence analysis of water. Up to the capacity of about 100 μeq of PAN used, the trace metal recoveries are around 90% or higher for Cr3+, Mn2+, Ni2+, Cu2+, Zn2+, Hg2+ and Eu3+, and above 70% for many other ions. The recovery yields usually do not vary critically with pH in the neutral pH-range, and are practically independent of the sample salinity, sample volume and trace-metal concentration. Enrichment factors as high as 2 × 105 can be achieved. Counting statistics would then allow detection limits of 0.03 ppM. The blank levels in commercial PAN, however, lead to typical detection limits of about 1 ppm. The coefficient of variation is typically in the 510% range at the 10-ppM level. The accuracy and applicability of the procedure are illustrated by comparative analyses on samples of synthetic solutions, river and drinking water. |
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Wos |
A1978GG18200005 |
Publication Date |
2002-07-25 |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
0039-9140; 1873-3573 |
ISBN |
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UA library record; WoS full record; WoS citing articles |
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no |
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Call Number |
UA @ admin @ c:irua:116556 |
Serial |
7675 |
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Permanent link to this record |
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Author |
Martin, J.-M.; Thomas, A.J.; Van Grieken, R.E. |
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Title |
Trace element composition of Zaire suspended sediments |
Type |
A1 Journal article |
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Year |
1978 |
Publication |
Netherlands journal of sea research |
Abbreviated Journal |
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Volume |
12 |
Issue |
3/4 |
Pages |
414-420 |
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Keywords |
A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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Publication Date |
2003-08-07 |
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Abbreviated Series Title |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
0077-7579; 1873-1406 |
ISBN |
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UA library record |
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Approved |
no |
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Call Number |
UA @ admin @ c:irua:116609 |
Serial |
8688 |
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Permanent link to this record |
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Author |
Vanderborght, B.M.; Van Grieken, R.E. |
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Title |
Trace metal analysis of water containing humic substances by X-ray fluorescence |
Type |
A1 Journal article |
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Year |
1978 |
Publication |
International journal of environmental analytical chemistry |
Abbreviated Journal |
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Volume |
5 |
Issue |
3 |
Pages |
221-237 |
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Keywords |
A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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Abstract |
Chelation by oxine followed by adsorption on activated carbon results in the efficient collection of many trace metal ions, independent of the trace metal concentration and of high alkali and alkaline earth ion abundances. Preconcentration factors around 10000 are often achieved. When this preconcentration procedure is combined with energy-dispersive X-ray fluorescence, accurate and precise analysis can be carried out, as was proven in several experiments. The technique can also be applied for the determination of divalent ions in natural waters containing up to 10 ppm of humic substances. Trivalent ions can quantitatively be collected from natural water provided suKicient activated carbon is added. Omitting the oxine chelation prior to the activated carbon adsorption step still results in collection of a sometimes important fraction of the trace metal ions from natural waters. This is related to organically bound or colloidal forms of the trace metals. |
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Wos |
A1978FR88000005 |
Publication Date |
2007-07-07 |
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Abbreviated Series Title |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
0306-7319 |
ISBN |
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UA library record; WoS full record; WoS citing articles |
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no |
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Call Number |
UA @ admin @ c:irua:116570 |
Serial |
8692 |
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Author |
Annegarn, H.J.; Madiba, C.C.P.; Sellschop, J.P.F.; Genz, H.; Hoffmann, D.H.H.; Low, W.; Richter, A.; Van Grieken, R.E. |
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Title |
Analysis of X-ray spectra excited by X rays, electrons, and protons in monazite |
Type |
A1 Journal article |
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Year |
1977 |
Publication |
Physical review : C : nuclear physics |
Abbreviated Journal |
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Volume |
16 |
Issue |
1 |
Pages |
379-383 |
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Keywords |
A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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Abstract |
Mineral monazite from Malaysia has been investigated by energy dispersive x-ray analysis employing three different methods: x-ray, relativistic electron and proton induced excitation. An upper limit of 15 ppm has been placed on the possible concentration of the superheavy element with Z=126. |
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Wos |
A1977DR12200044 |
Publication Date |
2002-07-26 |
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Abbreviated Series Title |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
0556-2813; 1089-490x |
ISBN |
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UA library record; WoS full record; WoS citing articles |
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no |
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Call Number |
UA @ admin @ c:irua:116554 |
Serial |
7453 |
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Author |
Van Grieken, R.E.; Bresseleers, C.M.; Vanderborght, B.M. |
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Title |
Chelex-100 ion-exchange filter membranes for preconcentration in x-ray-fluorescence analysis of water |
Type |
A1 Journal article |
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Year |
1977 |
Publication |
Analytical chemistry |
Abbreviated Journal |
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Volume |
49 |
Issue |
9 |
Pages |
1326-1331 |
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Keywords |
A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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Wos |
A1977DP25600011 |
Publication Date |
2005-03-08 |
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Series Editor |
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Abbreviated Series Title |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
0003-2700; 5206-882x |
ISBN |
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Additional Links |
UA library record; WoS full record; WoS citing articles |
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Impact Factor |
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Open Access |
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Notes |
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Approved |
no |
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Call Number |
UA @ admin @ c:irua:113632 |
Serial |
7639 |
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Permanent link to this record |
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Author |
Vanderborght, B.M.; Van Grieken, R.E. |
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Title |
Enrichment of trace metals in water by adsorption on activated carbon |
Type |
A1 Journal article |
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Year |
1977 |
Publication |
Analytical chemistry |
Abbreviated Journal |
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Volume |
49 |
Issue |
2 |
Pages |
311-316 |
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Keywords |
A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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Abbreviated Series Title |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
0003-2700; 5206-882x |
ISBN |
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Additional Links |
UA library record |
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Impact Factor |
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Open Access |
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Notes |
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Approved |
no |
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Call Number |
UA @ admin @ c:irua:116513 |
Serial |
7923 |
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Permanent link to this record |
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Author |
Akselsson, R.; Orsini, C.; Meinert, D.L.; Johansson, T.B.; Van Grieken, R.E.; Kaufmann, H.C.; Chapman, K.R.; Nelson, J.W.; Winchester, J.W. |
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Title |
Application of proton induced X-ray emission analysis to the St. Louis regional air pollution study |
Type |
P3 Proceeding |
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Year |
1976 |
Publication |
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Abbreviated Journal |
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Volume |
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Issue |
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Pages |
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Keywords |
P3 Proceeding; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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Wos |
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Edition |
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Additional Links |
UA library record |
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Open Access |
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Approved |
no |
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Call Number |
UA @ admin @ c:irua:113633 |
Serial |
7481 |
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Permanent link to this record |
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Author |
Johansson, T.B.; Van Grieken, R.E.; Winchester, J.W. |
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Title |
Elemental abundance variation with particle-size in north florida aerosols |
Type |
A1 Journal article |
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Year |
1976 |
Publication |
Journal of geophysical research |
Abbreviated Journal |
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Volume |
81 |
Issue |
6 |
Pages |
1039-1046 |
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Keywords |
A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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Abstract |
A nonurban base line has been established for nine trace element constituents of aerosol particles as a function of particle size at ground level sampling stations in north Florida up to 50 km from the Gulf of Mexico. The particle size range 0.25- to >4-μm aerodynamic diameter was investigated by cascade impactor sampling and elemental analysis by proton-induced X ray emission. By using a strategy of sampling at urban, forest, and coastal locations and by choosing approximately 48-hour sample averaging intervals the potential dependence of the base line levels both on local pollution and natural sources and on local particle size specific aerosol removal processes could be evaluated. It is found that elements contained in the largest particles, especially those of >4 μm, display the greatest degree of average concentration difference between sites, a result suggesting short atmospheric residence times and the importance of local dispersion sources and atmospheric cleansing processes in regulating the particle concentrations in air. Elements contained in particles of <2-μm diameter show little average concentration difference between sites unless they are influenced by local pollution sources, a finding suggesting that their concentrations in air are regulated by large-scale sources and transport processes. Sulfur in the smallest particles shows a marked constancy of concentration, but it may be modified in the largest particle size ranges in relation to proximity to the seacoast. No evidence is found for dependence of particulate sulfur concentrations on local pollution sources. K, Ca, Ti, Fe, and Zn appear to be regulated in the main by terrestrial source processes, and Cl by marine source processes, but Br and Pb appear to be accounted for adequately by assuming automotive fuel combustion as their major source. Limited data obtained for V indicate that it may vary considerably with fluctuations in aerosol transport from oil-fired electric power plant sources in the region. Limited additional data also suggest that Mn is derived from sources of natural terrestrial composition. In view of these findings, certain criteria may be set for the design of a meaningful nonurban aerosol monitoring network. |
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Wos |
A1976BG78300001 |
Publication Date |
2008-02-06 |
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Abbreviated Series Title |
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Edition |
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ISSN |
0148-0227; 2156-2202; 0022-1406; 0196-6928; 0196-6936; 0885-3401; 8755-8556; 0196-2256; 0747-7309; 1 |
ISBN |
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Additional Links |
UA library record; WoS full record; WoS citing articles |
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Impact Factor |
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Times cited |
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Open Access |
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Notes |
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Approved |
no |
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Call Number |
UA @ admin @ c:irua:113637 |
Serial |
7879 |
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Permanent link to this record |
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Author |
Van Grieken, R.E.; Adams, F.C. |
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Title |
Folding of aerosol loaded filters during X-ray fluorescence analysis |
Type |
A1 Journal article |
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Year |
1976 |
Publication |
X-ray spectrometry |
Abbreviated Journal |
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Volume |
5 |
Issue |
2 |
Pages |
61-67 |
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Keywords |
A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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Abstract |
Folding aerosol loaded filters in two with the loaded side inwards during the X-ray analysis not only reduces possible filter heterogeneity effects and improves sample protection, but also increases the sensitivity and renders filter paper absorption corrections simple and more accurate in many instances. It is shown that folding an aerosol loaded Whatman filter paper during Kα X-rays counting leads to an increased sensitivity for all elements up from calcium, scandium or titanium (depending on the sensitivity definition and on the aerosol load) and for all elements up from phosphorus, sulphur or chlorine in the case of the Nuclepore filter. Although the absorption by the filter, into which the aerosol penetrates to some extent, is always more important in the sandwich than in the usual geometry, the dependence of the absorption correction on the usually unknown average deposition depth is less pronounced. Assuming all the aerosol material to be collected at the very surface of the filter and hence being present in the centre of the sandwich to be analysed, leads to an extremely simple filter paper absorption correction which is less prone to uncertainties than more sophisticated corrections in the usual geometry requiring additional measurements. This is the case for all elements up from potassium on Whatman filters and up from phosphorus on Nuclepore filters. |
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Wos |
A1976BM95300002 |
Publication Date |
2005-05-28 |
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Series Editor |
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Series Title |
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Abbreviated Series Title |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
0049-8246 |
ISBN |
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Additional Links |
UA library record; WoS full record; WoS citing articles |
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Open Access |
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Notes |
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Approved |
no |
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Call Number |
UA @ admin @ c:irua:116480 |
Serial |
7976 |
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Permanent link to this record |
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Author |
Van Grieken, R.E.; Johansson, T.B.; Akselsson, K.R.; Winchester, J.W.; Nelson, J.W.; Chapman, K.R. |
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Title |
Geophysical applicability of aerosol size distribution measurements using cascade impactors and proton-induced X-ray-emission |
Type |
A1 Journal article |
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Year |
1976 |
Publication |
Atmospheric environment : an international journal |
Abbreviated Journal |
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Volume |
10 |
Issue |
8 |
Pages |
571-576 |
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Keywords |
A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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Abstract |
Proton Induced X-ray Emission, (PIXE), is capable of high precision analysis for trace element components of aerosol particle size fractions sampled by cascade impactor. A statistical evaluation of data quality has been carried out in order to distinguish between analytical uncertainties in the PIXE procedure, errors caused by cascade impactor performance and by other factors in the sampling procedure, and geophysical causes of differences in composition and particle size distributions of the elements in aerosols. Replicate analyses and simultaneous samplings taken in north Florida and St. Louis have been used for the data evaluation. In addition to the analytical error the sampling procedure contributes an error of ~ 10% to be added quadratically. The resulting precision is sufficient to evaluate the data in geophysical terms. This is illustrated by means of sample sets taken simultaneously in an urban, forest and coastal environment of the same region. |
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Wos |
A1976BZ75500001 |
Publication Date |
2003-08-06 |
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Abbreviated Series Title |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
1352-2310 |
ISBN |
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Additional Links |
UA library record; WoS full record; WoS citing articles |
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Open Access |
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Notes |
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Approved |
no |
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Call Number |
UA @ admin @ c:irua:113636 |
Serial |
8000 |
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Permanent link to this record |
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Author |
Adams, F.C.; Van Grieken, R.E. |
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Title |
Absorption correction for X-ray-fluorescence analysis of aerosol loaded filters |
Type |
A1 Journal article |
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Year |
1975 |
Publication |
Analytical chemistry |
Abbreviated Journal |
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Volume |
47 |
Issue |
11 |
Pages |
1767-1773 |
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Keywords |
A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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Wos |
A1975AN45700013 |
Publication Date |
2005-03-08 |
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Abbreviated Series Title |
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Edition |
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ISSN |
0003-2700; 5206-882x |
ISBN |
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Additional Links |
UA library record; WoS full record; WoS citing articles |
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Times cited |
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Open Access |
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Notes |
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Approved |
no |
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Call Number |
UA @ admin @ c:irua:113639 |
Serial |
7408 |
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Permanent link to this record |
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Author |
Johansson, T.B.; Van Grieken, R.E.; Nelson, J.W.; Winchester, J.W. |
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Title |
Elemental trace analysis of small samples by proton-induced X-ray-emission |
Type |
A1 Journal article |
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Year |
1975 |
Publication |
Analytical chemistry |
Abbreviated Journal |
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Volume |
47 |
Issue |
6 |
Pages |
855-860 |
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Keywords |
A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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Wos |
A1975AA02900016 |
Publication Date |
2005-03-08 |
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Series Editor |
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Abbreviated Series Title |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
0003-2700; 5206-882x |
ISBN |
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Additional Links |
UA library record; WoS full record; WoS citing articles |
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Impact Factor |
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Times cited |
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Open Access |
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Notes |
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Approved |
no |
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Call Number |
UA @ admin @ c:irua:113638 |
Serial |
7895 |
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Permanent link to this record |
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Author |
Johansson, T.B.; Van Grieken, R.E.; Winchester, J.W. |
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Title |
Interpretation of aerosol trace metal particle size distributions |
Type |
H3 Book chapter |
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Year |
1975 |
Publication |
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Abbreviated Journal |
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Volume |
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Issue |
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Pages |
356-365
T2 - Nuclear techniques in environmental r |
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Keywords |
H3 Book chapter; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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Edition |
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Additional Links |
UA library record |
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Open Access |
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Notes |
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Approved |
no |
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Call Number |
UA @ admin @ c:irua:117460 |
Serial |
8117 |
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Permanent link to this record |
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Author |
Van Grieken, R.E.; Johansson, T.B.; Winchester, J.W.; Odom, L. |
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Title |
Micro-determination of zirconium-hafnium ratios in zircons by proton induced X-ray emission |
Type |
A3 Journal article |
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Year |
1975 |
Publication |
Fresenius' Zeitschrift für analytische Chemie |
Abbreviated Journal |
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Volume |
275 |
Issue |
5 |
Pages |
343-348 |
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Keywords |
A3 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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Abstract |
The zirconium/hafnium ratios of zircons are determined using proton induced X-ray emission. Submilligram samples, imbedded in a starch layer and deposited on a 50 μg/cm2 polystyrene carrier, are irradiated for 1020 min with a 5 nA beam of 3.7 MeV protons, while the Hf-Lβ and Zr-Kα X-rays are counted with a Si(Li) detector. The standard deviation per analysis is in the 36 % range. Only few interferences are possible. To eliminate errors due to absorption effects the zircon layer thickness should be above 40 μm or reproducibly thin samples should be employed. Measuring the Hf-Lβ/Hf-Lα ratio for samples and standards might provide a practical check for the absence of absorption errors. The sensitivity is so favourable that, in practice, the minimal sample size is only limited by the minimal amount that can be handled properly. |
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Wos |
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Publication Date |
2004-11-11 |
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Series Title |
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Abbreviated Series Title |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
0016-1152 |
ISBN |
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Additional Links |
UA library record |
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Impact Factor |
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Times cited |
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Open Access |
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Notes |
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Approved |
no |
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Call Number |
UA @ admin @ c:irua:116636 |
Serial |
8231 |
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Permanent link to this record |
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Author |
Winchester, J.W.; Meinert, D.L.; Nelson, J.W.; Johansson, T.B.; Van Grieken, R.E.; Orsini, C.; Kaufmann, H.C.; Akselsson, R. |
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Title |
Trace metals in the St-Louis aerosol |
Type |
H3 Book chapter |
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Year |
1975 |
Publication |
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Abbreviated Journal |
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Volume |
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Issue |
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Pages |
385-394
T2 - Nuclear techniques in environmental r |
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Keywords |
H3 Book chapter; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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Series Issue |
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Edition |
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ISSN |
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ISBN |
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Additional Links |
UA library record |
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Impact Factor |
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Times cited |
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Open Access |
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Notes |
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Approved |
no |
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Call Number |
UA @ admin @ c:irua:117459 |
Serial |
8694 |
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Permanent link to this record |
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Author |
Nelson, J.W.; Williams, I.; Johansson, T.B.; Van Grieken, R.E. |
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Title |
Elemental analysis of aerosols using proton-scattering |
Type |
A1 Journal article |
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Year |
1974 |
Publication |
IEEE transactions on nuclear science |
Abbreviated Journal |
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Volume |
Ns21 |
Issue |
1 |
Pages |
618-621 |
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Keywords |
A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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Abstract |
Elemental analysis for all of the light elements up through chlorine by elastic scattering of 16 MeV protons has been shown to be feasible. Basic problems associated with such measurements are discussed including kinematics, angular distribution, and sample backings. Spectra are presented for air particulate matter for both a total filter (Nuclepore) and a size fractionated air impactor (polystyrene backed) sample. The method is absolute, non destructive and can be used in conjunction with proton induced x-ray fluorescence to quantitatively analyze all elements in the same sample in minutes of time. |
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Wos |
A1974S533700086 |
Publication Date |
2008-07-22 |
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Abbreviated Series Title |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
0018-9499 |
ISBN |
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Additional Links |
UA library record; WoS full record; WoS citing articles |
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Impact Factor |
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Times cited |
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Open Access |
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Notes |
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Approved |
no |
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Call Number |
UA @ admin @ c:irua:113642 |
Serial |
7881 |
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Permanent link to this record |
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Author |
Johansson, T.B.; Van Grieken, R.E.; Winchester, J.W. |
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Title |
Marine influences on aerosol composition in the coastal zone |
Type |
A1 Journal article |
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Year |
1974 |
Publication |
Journal de recherches atmosphériques |
Abbreviated Journal |
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Volume |
8 |
Issue |
3-4 |
Pages |
761-766 |
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Keywords |
A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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Abstract |
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Address |
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Corporate Author |
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Thesis |
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Place of Publication |
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Publication Date |
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Series Editor |
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Series Title |
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Abbreviated Series Title |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
0021-7972 |
ISBN |
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Additional Links |
UA library record |
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Impact Factor |
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Times cited |
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Open Access |
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Notes |
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Approved |
no |
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Call Number |
UA @ admin @ c:irua:113640 |
Serial |
8204 |
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Permanent link to this record |
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Author |
Van Grieken, R.E.; Johansson, T.B.; Winchester, J.W. |
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Title |
Trace metal fractionation effects between sea water and aerosols from bubble bursting |
Type |
A1 Journal article |
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Year |
1974 |
Publication |
Journal de recherches atmosphériques |
Abbreviated Journal |
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Volume |
8 |
Issue |
3-4 |
Pages |
611-621 |
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Keywords |
A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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Abstract |
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Address |
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Corporate Author |
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Thesis |
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Publisher |
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Place of Publication |
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Wos |
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Publication Date |
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Series Editor |
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Series Title |
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Abbreviated Series Title |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
0021-7972 |
ISBN |
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Additional Links |
UA library record |
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Impact Factor |
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Times cited |
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Open Access |
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Notes |
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Approved |
no |
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Call Number |
UA @ admin @ c:irua:113641 |
Serial |
8693 |
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Permanent link to this record |
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Author |
Johansson, T.B.; Nelson, J.W.; Van Grieken, R.E.; Winchester, J.W. |
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Title |
Elemental analysis of aerosol-size fractions by proton-induced X-ray-emission |
Type |
A1 Journal article |
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Year |
1973 |
Publication |
Transactions of the American Nuclear Society |
Abbreviated Journal |
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Volume |
17 |
Issue |
Nov |
Pages |
103-103 |
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Keywords |
A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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Abstract |
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Address |
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Corporate Author |
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Thesis |
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Publisher |
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Place of Publication |
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Wos |
A1973R161300114 |
Publication Date |
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Series Editor |
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Series Title |
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Abbreviated Series Title |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
0003-018x |
ISBN |
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Additional Links |
UA library record; WoS full record |
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Impact Factor |
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Times cited |
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Open Access |
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Notes |
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Approved |
no |
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Call Number |
UA @ admin @ c:irua:113643 |
Serial |
7880 |
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Permanent link to this record |